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Description of  Strain-Your-Brain: Power Puzzles

1402739699 pdf 1402739699 pdf Dassling Mathematical Challenges Compiled by One of the Top Puzzle Makers in the World Looking for a little intellectual stimulation? A chance to prove your mental superiority? Each brain-baffling puzzle and game in this collection is fun and will test your math skills in the most demanding and satisfying way. Can you finish them all?